400092240 has 40 divisors (see below), whose sum is σ = 1240286688. Its totient is φ = 106691200.

The previous prime is 400092223. The next prime is 400092241. The reversal of 400092240 is 42290004.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400092241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 833286 + ... + 833765.

Almost surely, 2^400092240 is an apocalyptic number.

400092240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400092240 is an abundant number, since it is smaller than the sum of its proper divisors (840194448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400092240 is a wasteful number, since it uses less digits than its factorization.

400092240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667067 (or 1667061 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 400092240 is about 20002.3058670744. The cubic root of 400092240 is about 736.8629312195.

The spelling of 400092240 in words is "four hundred million, ninety-two thousand, two hundred forty".